Collateral Damage Daily for August 21

Denard Span's sore shoulder has kept him out of the lineup, so he underwent an MRI on his clavicle yesterday. He is due to get another MRI today on his shoulder, suggesting doctors will inject dye into the shoulder looking for a torn labrum. Ö Johan Santana will have an MRI on his back because of continued stiffness. Heís penciled in for Thursdayís start, but that could change. If he does make the start, he will be limited to less than 100 pitches.

Additions

Carl Crawford felt it was inevitable that he would have Tommy John surgery on his left elbow, and he was correct. He will undergo the surgery Thursday and could miss a portion of the 2013 season if things donít go perfectly in his rehab. Even though Crawford started to turn it around at the plate recently, his symptoms worsened. Daniel Nava will likely be activated from the DL.

When it rains, it pours for the White Sox. Alejandro De Aza will be placed on the 15-day DL today with lingering back soreness that localized around his oblique. Oblique injuries typically need about three to four weeks to heal.

Subtractions

Brett Anderson was activated from the disabled list about 13 months after having Tommy John surgery. Andersonís recovery time is typical for those who have had the procedure. His numbers during his rehab starts havenít been spectacular, but it takes 15 to 18 months to fully recover. Dan Straily was optioned to make room.

Luke Scott will be activated from the DL today after missing a month with a strained right oblique. His time missed was roughly equal to the historical average. The problem for Scott moving forward is that he is going to have to battle Evan Longoria for time at DH unless either starts playing the field again. Longoria may be able to start playing third base within a week, but heíll still need time at DH. A corresponding move hasnít been made yet.

Jhoulys Chacin will be activated today in time for his start against the New York Mets. Chacin has not pitched since May 1. He battled through some inflammation during spring training, which may have contributed to the length of his DL stint.

Jason Bartlett was released by the Padres yesterday, ending his 97-day DL stint with a strained right knee. He has improved recently, but a roster crunch probably factored into his release. The Padres believe he could be healthy enough to play for another team.